1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nika2105 [10]
3 years ago
11

Suppose that 0.88g of water condenses on a 75.0-g block of iron that is initially at 22 degrees Celsius. If the heat released du

ring condensation goes only to warming the block, what is the final temperature (in degrees Celsius) of the iron block? Assume a constant enthalpy of vaporization for water of 44.0 kJ/mol.
Chemistry
1 answer:
vitfil [10]3 years ago
8 0

Answer:

The final temperature (in degrees Celsius) of the iron block is 85.82 °C

Explanation:

<u>Determine the heat emitted by the condensing water.</u>

qw = 0.88 g H2O  \frac{1 mol H2O}{18.0152 g H2O}  \frac{- 44 kJ}{1 mol H2O}

qw = -2.1492 kJ

<u>Determine the heat absorbed by the iron block</u>

qw = - qw = - (-2.1492 kJ) = 2.1492 kJ

<u>Look up the specific heat for iron. Use the specific heat equation to solve for the final temperature of the iron block.</u>

q = mcΔT

ΔT = q / mc

Temp f = (q / mc) + Temp i

Temp f = 2.1492 x 10^3 J / 75 g (0.449 J/g.°C) + 22 °C

Temp f = 85.82 °C

You might be interested in
The number of electrons in a neutral atom is equal to the number of protons? True or false
NNADVOKAT [17]

Answer:

true

Explanation:

in order for the atom to be neutral the number of protons and electrons have to be the same.

3 0
2 years ago
How many millimeters are equal to 0.399195L
WINSTONCH [101]
399.195 millimeters=0.399195 liters
3 0
3 years ago
A 20.0 g piece of a metal is heated and place into a calorimeter containing 250.0 g of water initially at 25.0 oC. The final tem
BartSMP [9]

Answer:

Q_{metal} = -6799\,J

Explanation:

By the First Law of Thermodynamics, the piece of metal and water reaches thermal equilibrium when water receives heat from the piece of metal. Then:

Q_{metal} = - Q_{w}

Q_{metal} = m_{w} \cdot c_{p,w}\cdot (T_{1}-T_{2})

Q_{metal} = (250\,g)\cdot \left(4.184\,\frac{J}{g\cdot ^{\textdegree}C} \right)\cdot (25\,^{\textdegree}C - 31.5\,^{\textdegree}C)

Q_{metal} = -6799\,J

6 0
3 years ago
Read 2 more answers
Over a long period of time, an igneous rock changes into a sedimentary rock. Which of these actions must have affected the igneo
Alla [95]

Answer: The actions that must have affected the igneous rock in order to form the sedimentary rock is that (It must have been broken down into sediments).

Explanation:

Rocks are solid structures that occurs naturally which is made up of different minerals. There are three main types of rocks, these includes:

--> METAMORPHIC ROCKS: These are the type of rocks which are formed by temperature and pressure changes inside the Earth.

--> SEDIMENTARY ROCKS: these rocks are usually formed from pre-existing rocks through the process of weathering (breaking down) of rocks.

--> IGNEOUS ROCKS: these rocks are formed when molten magma cools beneath or above the earth surface.

The actions that must have affected the igneous rock in order to form the sedimentary rock is that the igneous rocks are broken down into smaller pieces by erosion and weathering processes. Sediments which are formed accumulates at the earth surface. Over a long period of time, these sediments builds successive layers on top of one another. The sediments near the base hardens to form sedimentary rocks. This justifies the statement as a correct option (It must have been broken down into sediments).

3 0
3 years ago
Which symbol represents a particle with a total of 10 electrons
vova2212 [387]
Al3+ is the answer. :)
7 0
3 years ago
Other questions:
  • Which are examples of dynamic equilibrium
    12·2 answers
  • Helium gas has a molar mass of 4 g/mol. oxygen gas has a molar mass of 32 g/mol. how much faster or slower would helium effuse t
    9·1 answer
  • How many alcohols and ethers share the molecular formula c2h6o?
    11·2 answers
  • What do sedimentary rock layers reveal about ancient environments?
    13·1 answer
  • What types of intermolecular interactions are present in pure substances composed of the each of the three molecules below:
    14·1 answer
  • A gaseous substance turns into a solid. Which best describes this change? A substance that has a specific shape changes to a sub
    13·2 answers
  • Which of the following has more energy than visible light?
    12·1 answer
  • What is the formula weight (amu) of the molecule H2O? Use atomic masses of H and O as 1.008 amu and 16.00 amu respectively. Repo
    15·1 answer
  • HELP PLEASE Iodine is a _____.
    8·1 answer
  • Please Help! <br><br> How many molecules are in a 4.1 mole sample of CO?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!